Transcription of FEATURE ARTICLE The MDLT-1302T Partial-Flow Dilution ...
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34 FEATURE ARTICLEThe MDLT-1302T Partial-Flow Dilution tunnel for transient Test Cycle PM SamplingAbstractThe current steady-state test cycles used to measure particulate matter (PM) in engine exhaust will be replaced bytransient test cycles in near future. Horiba has recently developed a PM sampling system using a partial flow dilutionmethod, the MDLT-1302T , to perform sampling during transient test cycles. The MDLT-1302T has been evaluatedusing a heavy-duty diesel engine operating under the Euro transient Cycle (ETC) and Feaeral Test Procedure (FTP) transient cycle, and the results prove that a fast flow control has been achieved with a response time of less than This paper describes the performance of the MDLT-1302T and the technical challenges encountered duringits MDLT-1302T Partial-Flow Dilution Tunnelfor transient Test Cycle PM SamplingYutaka YamagishiMini TunnelsFull TunnelsFull / Mini / Micro TunnelsMicro TunnelsMini TunnelsFull TunnelsMicro Tunnelsflow rate of exhausted gas I/mFlow rate sample gas I/mDriving modePM measurem
34 FEATURE ARTICLE The MDLT-1302T Partial-Flow Dilution Tunnel for Transient Test Cycle PM Sampling Abstract The current steady-state test cycles used to measure particulate matter (PM) in engine exhaust will be replaced by transient test cycles in near future.
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